A/N: Hey guys! This is one of those ideas I've created in my spare time, and actually…it's not original since other people do it. I basically just red Re: Monster, both its Light Novel and Manga, marathoned and binge-watched shows, movies, and several other things for inspirations, and I'm now on a new roll of starting a new fic, so let's get started!

Re: DxD

A Highschool DxD/Re:Monster Crossover
By Harutora75
© 2015 . Harutora75, All rights reserved

Disclaimer: I do not own Highschool DxD, or anything else. I just own the Idea.

Day 1:

'…Huh…w-where is this place?'

When I woke up I felt a strange sensation of death wavering around me. My eyes barely opened, as if they were shut closed for a long time, and I couldn't move all of my limbs at all.

'Wasn't I…fighting Trihexa with the others?'

It felt like I was about to get crushed from the sensation like how a cockroach gets crushed by a foot. I was completely powerless to do anything against this feeling.

'Are…Buchou and the others safe, did they escape?'

Having these thoughts in my mind, I still couldn't find a way of finding out what or who gave of this aura due to the fact that I was neither able to open my eyes, nor to move my body, which felt weak, and for some reason, I felt…strange.

This feeling in my stomach…is it hunger? No. It's feels like…starvation.

'Ddraig…Ddraig…Ddraig, where are you?!'

I tried to call out to the dragon, hoping to get a reaction or so, anything at all.

…Nothing, nothing at all.

'What happened…I can't remember anything…I 'm so hungry…'

With those final thoughts, a strong drowsiness began to befall my mind, before I went back to a deep slumber.

Day 2:

When I woke up again I felt hungry, also a little bit thirsty.

The aura of death was gone. Now don't misunderstand me, it didn't simply vanish. It was more like it was now subdued, it was still there though.

'Just where am I?'

I tried opening my eyes, resulting in me failing a few times, before finally succeeding with me seeing…darkness?

'W-wait, am I…dead?'

Wait…no, I shouldn't be asking that question right now. What happened to Trihexa? Where are Buchou and the others? Ddraig, can you hear me?!

SNORT

Before I even noticed, the wall of darkness in front of me shifted and moved around, before finally going back in place, the wall(?) somehow making soft but lots of snorting noises, as if it was sleeping.

'Wait a minute…this isn't a wall, is it?'

I tried to look closer and yes, it was indeed breathing, I can even feel their breath. Then I noticed something else, the breathing wall is covered in fur!

"What…is this? Wait, can I move?"

I tried to stand on my hands and feet, but I stopped when I planted my left hand on the ground to get back on my feet. Feeling a little strange I looked down on what was beneath me.

It wasn't my hand. Correction, it wasn't a hand at all. It was a hoof at the end of a short leg, a cloven hoof to be exact, like a pig's or another animal of some sort.

I held it in front of my face, then stretched it out and moved it back and forth in disbelief. I went left, it went right; I went left, right, left, right, up, down, sideway, up way, down way, and every way. Yep, that's clearly my hoof. The hoof that was moving because it was mine was my hoof. I have a hoof.

…Holy shit, I have a fucking hoof. Now that I think about it, it's kind of small.

Staring at the hoof in shock and disbelief, I looked around saw walls that looked like stone, and it was pretty dark, so I think I'm in a cave of some sort. I looked a little lower around me and saw a strange sight.

All around me were little black piglets, genuine actual piglets, snorting and sleeping around me, no I'm not kidding at all. And if you're asking, No, I'm not on drugs, Buchou and the others would probably kill me if I did. And no I'm not dreaming, I tested it out when I bit my left hoof, my teeth hurts a little by the way, ow. So this can't be a dream.

'If this were a dream, I would be groping Rias's breasts, or maybe some of others as well right now, but I feel pain, so…yeah, this isn't a dream.

I then focused my attention back on the large object and saw what it was crystal clear. It was a huge black boar sleeping, and unlike the ones around me it had a line of hair sprouting from its spine, a snub snout which was snoring softly, a series of red armored plates with spikes along its back and on its thighs, and large and sharp tusks which looked like it could gouge a person's stomach and his guts quite easily.

'Just…what is going on…?'

I shook my head out of my current thoughts, trying to make light of the situation. I began to try to piece out what I could remember, but that proved to be a little bit too much since I could barely remember anything.

'Okay, let's see…I remember me, Vali, Great Red and Ophis going against Trihexa. Everyone was busy distracting the Khaos Brigade, the remaining Evil Dragons and the small army of mass-produced Boosted Gear Scale Mails, After all of our enemies were killed or subdued, The Three Factions and the rest of DxD came an …and…yeah, that's right, We were fighting against Trihexa at a stalemate until…until …

With every thought, it was beginning to come back to me. All of us were exhausted, bloody, and beaten. I couldn't let my comrades and the rest die, so I began to throw all I got at it until Great Red could arrive, and after he arrived we won. But…I was injured too much, not even Asia or anyone could help heal me. I suddenly blacked out, so I can't remember anything after that.

"I…guess I died after all…dammit! I died again, does that mean I don't have Boosted Gear anymore? Great, just great. Ddraig left me, could this get any worse?!' I was looking down unconsciously squealing angrily at my own damn misfortunes, so I didn't notice the large boar in front of me stirring up. It was only until that a shadow washed over did I look up and saw a boar's snout and large tusks, followed up with the Boar's red eyes looking down at me.

"Hmm…well what do I see here, you're a quick one, aren't you? You must be impressive if you can wake up this early, most of you piglets stay asleep until the 6th day." The Boar in front of me spoke in an old, deep voice; I was kind of shocked to see it talk, in English nonetheless!

"Um…hello…?" I replied back after a few minutes, uncertain on how to respond.

The armored looking boar snorted, as if he was impressed. "Early at speaking as well, my, what a curious little piglet aren't you?"

"Um, if you don't mind me asking…who are you?"

"Oh, where are my manners." He snorted a bit when he said this. "I am Old Lockjaw, leader of this little herd, The Maple River Clan."

Old Lockjaw? Clan? The Maple-what now?

"Um…okay. Where -"I was ask him where I was until-

DING!

"What the-" I was suddenly faced with a translucent box with words on it, making me shout in surprise. Which kind of sounded like a squeal now that I think about it?

As Aku, God of Monsters, I welcome you to this world.

Please sign in your name, young one.

Sign in your name? Wait, my name's Issei Hyoudou, why would I need to pick a name?

It was then that I remembered about my current situation. So if I actually died and reincarnated, does that mean I have to choose a new name?

"Hmm, what's wrong?" Lockjaw asked me curiously.

"Uh, there's some kind of box with words floating in front of me." This thing in front of me, isn't this a text box from an MMORPG of sorts?

"Oh, are you talking about the Name Box? Don't worry about that young one. I'll take care of that." Then to my surprise, he raised his right hoof and flipped the box around, making it face him instead. "Hmm, now what should I name you…"

Wait, how did he-?!

"Hmm? Is there something wrong?" He saw the confused face I made, pushed aside the floating box and looks down a bit at me again, perplexed.

"Y-yes, H-how'd you do that?"

"…I just flipped it around, obviously." He tilted his head and looked at me weirdly, while saying this.

"That's not what I meant, what is that exactly?" I all but questioned him.

Was this normal?

"…Oh, right. I forgot you were just a little piglet. Well let me tell you what this is. This," He pointed at the floating box. "Is what we call a "Text Box", otherwise known as the "World Text". It helps maintain the "Advancement System" and the "Status System". Tools every being uses to survive, thrive, and live in this world, given to us by the High Goddess of Mirrenia, Sylphy."

"Wait, What?! Who's Sylphy, what do you mean by Mirrenia?! Just what am I exactly?!" I raised my voice a little bit as I said all this.

"…You really don't know, do you?" I nodded at his question, and he answered. "We live in a world known as Mirrenia, governed by the Goddess of Light, Sylphy. And as for you, young monster…" He crouched his legs down a bit, making me see him, face to face. "You're a Feral Boar, a feral piglet, to be exact."

"… W-what?" I asked, sitting my haunches on the ground, shocked by this revelation.

"Yes, you are a monster. Also, I should mention the fact that you're quite a big one, aren't you?" He replied back to me.

"I'm…I'm not on earth anymore?"

"Earth, what is this 'Earth' you speak of, young one?" The old Boar asked me, but I was ignoring him, too shocked to speak.

"I'm…I'm not on earth, hahaha, never going to see Rias and the others, aren't I?…I'm a monster, a Boar to be exact…haha..." I was starting to laugh a little bit in absurdity at sheer craziness I found myself in. I was a Boar, a fucking monster, and one of the weakest ones of them yet. Holy shit, I was going to be on every monster's menu, aren't I? Haha, this was absolute bullshit...

I was never going to see the others again...ha...haha...

"…A-are you okay there, little one?"

"…Hahaha, Mirrenia…Goddess…I died and became a pig, totally legit…haha…haha..."

"Umm, little one?" Lockjaw looked at me, becoming a little worried.

I soon passed out on the ground, soon after. A little bit from the shock, and a little bit from exhaustion.

Day 3:

'Uh…so thirsty…'

I then wake up once again, feeling a little bit thirsty. I look around me and sighed, the same gray walls were around me, as well as the herd of piglets around me. I couldn't see that old boar Lockjaw anywhere, so I assumed he was out.

I looked around spotted a pond on the corner of the cave. I made my way towards it. Well, more like crawled towards it with unsteady legs, it was kind of hard to move around with these hooves, but I think I can get used to it.

When I reached the fountain, I took a drink. As I finished, I try to look at my reflection in the water.

What greeted me was a black little piglet, staring right back at me. It looked a bit bigger than the others, while there were already small tusks growing out of it, unlike the rest.

So… I actually died…again.

I sighed at the thought of that again. I literally got resurrected a second time from death with a body made from Great Red's flesh, and now I had to lose that one too, is this punishment for dying a third time?

…Wait, is this karma for being a pervert? Now that's just unfair.

How are the others? Are they okay? I really hope they could forgive me for dying on them again. I'm sorry, everyone.

"..No, no. I shouldn't be depressed." I sighed a little at this, trying to focus on the bright side of everything that is happening. "If they're all okay, then that's fine with me."

…Ah, who am I kidding? I miss them all!

I suppress these depressing thoughts out my head as I've decided. From here on out, for everyone's sake, if I have to live in this world. I'll do my best!

…I should probably look for Lockjaw now. I'm a little bit hungry, so I should go outside to see him.

A/N: Alright, now that's a wrap. Hope you guys liked reading this, and if you have some questions or so. I'd be happy to answer them. And I as well have some questions of my own.

Q1: What should Issei's new name be?

Q2: What should Issei rank up to?

Q3: What races should I introduce?

That's all for now, hope you guys enjoy, and see you later.